RC Circuits A 2 k resistor is in series with a 0.015 F capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle? 734 and θ = –38.9° 707 and θ = –19.5° 2121 and θ = –19.5° 73.4 and θ = –19.5° 734 and θ = –38.9° 707 and θ = –19.5° 2121 and θ = –19.5° 73.4 and θ = –19.5° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency is held constant must be increased must be decreased has no effect is held constant must be increased must be decreased has no effect ANSWER DOWNLOAD EXAMIANS APP
RC Circuits An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist: R < XC R > XC R = 5XC R = XC R < XC R > XC R = 5XC R = XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is 1.9 V 27 V 3 V 19.2 V 1.9 V 27 V 3 V 19.2 V ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 120Ω resistor is in parallel with a capacitor with a capacitive reactance of 40 Ω. Both components are across a 12 V ac source. What is the magnitude of the total impedance? 37.9Ω 14400Ω 4800Ω 3.7Ω 37.9Ω 14400Ω 4800Ω 3.7Ω ANSWER DOWNLOAD EXAMIANS APP
RC Circuits Point +4 on the complex plane is 4 units left of the origin on the real axis 4 units below the origin on the j axis 4 units right of the origin on the real axis 4 units above the origin on the j axis 4 units left of the origin on the real axis 4 units below the origin on the j axis 4 units right of the origin on the real axis 4 units above the origin on the j axis ANSWER DOWNLOAD EXAMIANS APP
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